Hi everyone. I am running my plumbing on my diy build. Vinyl liner metal wall pool. I am backfilling completely with clean 57 gravel, except for I was planning to use paver base beneath and a few inches above the pipes to protect them from the sharp edges of the 57. From that top layer of paver base I was planning to finish off with 57 gravel to deck grade. Is this a sound method or am I going to have settling issues with the mixture of the paver base and 57?